New ability for Wolves and their kin - Howling

[Berandor]

Hi!

I was thinking of giving wolves and other, similar creatures, the following ability:

unsettling howl (ex): Anybody who is subject to the creature's howl for more than one hour must make a Will save or be shaken for as long as he hears the howling, and 1d6+1 rounds thereafter. Victims with more HD than the howling creature are immune to the effect. A creature that makes his save is immuner to the effect of the howling for one day.
The creature cannot make a bite attack in the same round it is howling.
The DC of the save is 10 + 1/2 the creature's HD + Cha-mod.:
Wolf = DC 9
Dire Wolf = DC 13
Winter Wolf = DC 13
Worg = DC 12

Optional: On full moon nights, the DC of the save rises by 2.

What do you think?

 

[Claude Raines]

Seems pretty good to me and a nice bit of flavor. It might be worth bumping up the CR of the creature by 1, however.

 

[wolfpunk]

I think that it is a great flavor ability. I don't think it should raise the CR of the creature at all, since it is mostly going to come into play as an effect against the player characters.

Besides, wolves howl it is in their nature. What would the party do when the druid's wolf spent all night howling at the full moon??